EDITORIAL

SECRETARY Brendan Keely FSLL bkeely@cibse.org

SLL COORDINATOR Juliet Rennie Tel: 020 8772 3685 jrennie@cibse.org

EDITOR Jill Entwistle jillentwistle@yahoo.com

COMMUNICATIONS COMMITTEE: Linda Salamoun MSLL (chair) Iain Carlile FSLL Jill Entwistle Chris Fordham MSLL Rebecca Hodge Eliot Horsman MSLL Stewart Langdown FSLL Bruce Weil Gethyn Williams

All contributions are the responsibility of the author, and do not necessarily reflect the views of the society. All contributions are personal, except where attributed to an organisation represented by the author.

COPY DATE FOR LL5 2020 IS 17 JULY

PUBLISHED BY The Society of Light and Lighting 222 Balham High Road London SW12 9BS www.sll.org.uk ISSN 2632-2838

© 2020 THE SOCIETY OF LIGHT AND LIGHTING

The Society of Light and Lighting is part of the Chartered Institution of Building Services Engineers, 222 Balham High Road, London SW12 9BS. Charity registration no 278104

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FROM THE EDITOR

Positive outcomes do emerge from catastrophe. Clouds and silver linings. Throughout lockdown it has been hard not to relish the respite from pollution and petrol fumes, the sound of birdsong, the sense, as someone put it, of the Earth starting to breathe again. Of course that's easy to say if you're not holed up in some crowded urban tenement with little prospect of earning any money.

Most countries will emerge with economies seriously damaged if not in tatters. Will our rush to recoup lost capital trample over already inadequate efforts to stop climate change? Or do we have sufficient vision and motivation to see that economic renewal can sit easily with a less rapacious approach to the planet and its people? Why does one preclude the other? Why can't one drive the other?

They were the questions effectively posed by new SLL president Bob Bohannon in his address in May. This was an opportunity for reevalution.

'The Covid-19 lockdown has, temporarily, cut CO2 emissions, but it has also triggered a huge economic contraction,' he said. 'Some governments are calling to harness their economic recovery to plans to boost low carbon design and technology. They call this Build Back Better.'

This universal message should also be an aspiration for the society, he said. Overall the SLL needed to promote the value of light. 'The more the wider public realises what light does, the more our clients are likely to engage with us and move away from the lowest common denominator, price-driven discussion.'

JILL ENTWISTLE

JILLENTWISTLE @YAHOO.COM

CURRENT SLL LIGHTING GUIDES SLL Lighting Guide 0: Introduction to Light and Lighting (2017) SLL Lighting Guide 1: The Industrial Environment (2012) SLL Lighting Guide 2: Lighting for Healthcare Premises (2019) SLL Lighting Guide 4: Sports (2006) SLL Lighting Guide 5: Lighting for Education (2011) SLL Lighting Guide 6: The Exterior Environment (2016) SLL Lighting Guide 7: Office Lighting (2015) SLL Lighting Guide 8: Lighting for Museums and Galleries (2015) SLL Lighting Guide 9: Lighting for Communal Residential Buildings (2013) SLL Lighting Guide 10: Daylighting – a guide for designers (2014) SLL Lighting Guide 11: Surface Reflectance and Colour (2001) SLL Lighting Guide 12: Emergency Lighting Design Guide (2015) SLL Lighting Guide 13: Places of Worship (2014) SLL Lighting Guide 14: Control of Electric Lighting (2016) SLL Lighting Guide 15: Transport Buildings (2017) SLL Lighting Guide 16: Lighting for Stairs (2017) SLL Lighting Guide 17: Lighting for Retail Premises (2018) SLL Lighting Guide 18: Lighting for Licensed Premises (2018) SLL Lighting Guide 19: Lighting for Extreme Conditions (2019) Guide to Limiting Obtrusive Light (2012)

Code for Lighting (2012) Commissioning Code L (2018) SLL Lighting Handbook (2018)